Pulse to play a song of the same BPM?

Doing a project , and wondering if anyone can help me with trying to get a pulse rate and to be able to play a song from a bank of songs that have the same bpm as the pulse. Im new to arduino aswell.

any help would be greatly appreciated thank you

wondering if anyone can help me with trying to get a pulse rate

Using what sensor?

and to be able to play a song from a bank of songs that have the same bpm as the pulse.

Using what kind of storage mechanism for the songs? A bank of them? Songs are usually files in directories on SD cards.

What is going to play the song?

What is to happen when the instantaneous pulse rate changes? Should a different song be played? Should one song cover a range of BPM?

a pulse sensor

a pulse sensor

OK. Your 90% of the way there. The rest should be trivial.